Mrs Tian’s battered body was found by a friend in an upstairs bedroom of the family’s Lockwood Rd home on Tuesday, March 22, 2011.

Li is alleged to have repeatedly bashed his mother, also known as Emma Mei Tian, and tightly wrapped her body in bedding on Saturday, March 19.

The motive for the killing remains unknown.

Li then caught a taxi to Adelaide Airport and flew to Melbourne, where he stayed until boarding a flight to Singapore in the early hours of Wednesday, March 23.

In a critical bungle, Eastern Adelaide CIB detectives missed calls from immigration officials at Melbourne Airport because one officer had a flat mobile phone battery and another had left their phone in an office.

Dr Cannon remanded Li in custody to next appear in court in September, and answer the charge in October.